Reactor inner wall cleaning equipment

Abstract

The utility model provides reactor inner wall cleaning equipment which comprises a moving module, the moving module carries a spray gun, and the spray gun is communicated with an air source through an air pipe connector. The spray gun comprises a gun body, the interior of the gun body is fixedly connected with an air inlet pipe, and the front end of the gun body is fixedly connected with a nozzle. The outer portion of the air inlet pipe is fixedly connected with the shell through bolts. The shell is fixedly connected with the gun body through a fixing cover plate. The safety bar is fixedly connected with a bracket; the arc-shaped nozzle is arranged at the front end of the spray gun, so that the spraying coverage of the single spray gun is expanded, and the efficiency of cleaning operation is remarkably improved. The three spray guns work cooperatively, and the intersection area of the spraying ranges of the three spray guns becomes wide, so that dust which is difficult to touch among the spray guns can be more effectively purged and removed, the depth and comprehensiveness of the cleaning effect are ensured, fine powder is thoroughly cleaned, and the cleaning period is greatly shortened.

Description

Technical Field

[0001] One or more embodiments of the present specification relate to the field of reactor cleaning technology, and in particular, to a reactor inner wall cleaning device. Background Art

[0002] In the polyolefin production process, the reactor's inner walls, particularly the top spherical head area, often experience adsorption issues with fine powder, loose lumps, or flakes. These deposits can shed in large quantities during extended production runs, disrupting normal production processes. Fluidized-bed reactors in polyethylene plants are 5-10 meters in diameter, and manual cleaning, particularly in the expanded section, has traditionally been required. This is time-consuming, labor-intensive, and poses safety risks.

[0003] The application number in the prior art is: 202121686558, and the patent name is: A Chinese utility model patent for an air nozzle angle adjustment mechanism, which describes that "by arranging an inner ring and an outer ring on the upper outer ring of the nozzle body, the nozzle body can be rotated at any angle, and the side holes arranged at the four corners of the bottom can apply a reaction force to the nozzle when spraying gas, so that it can continuously adjust the angle under the action of the reaction force, without excessive mechanical transmission structure, thereby reducing wear and ensuring its service life. By fixing mounting plates on both sides of the outer ring, the mounting plates are fixed to the surface of the outer ring by welding, and the surface of the mounting plate is provided with through holes. When installing the nozzle body, it can be conveniently installed in the required position through the mounting plate." However, the nozzle described therein only sprays through several side holes at the nozzle, and its spray range is limited and the spray area is small. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a reactor inner wall cleaning device to solve the problem of small spraying area of ​​the nozzle in the prior art.

[0005] Based on the above purpose, the utility model provides a reactor inner wall cleaning device, including a mobile module, the mobile module carrying a spray gun, the spray gun is connected to the gas source through an air pipe interface, the spray gun includes a gun body, the interior of the gun body is fixedly connected to the air inlet pipe, and the front end of the gun body is fixedly connected to the nozzle;

[0006] The edge of the nozzle is arc-shaped, which is used to increase the area of ​​the jet airflow and expand the jet range;

[0007] The front end of the nozzle is provided with a plurality of air jets evenly arranged in the center of the arc surface. The direction of the air jets is collinear with the radius of the arc surface, and the air jet width is 500 mm.

[0008] The front end of the air inlet pipe is fixedly connected to the air cavity, and the front end of the air cavity is fixedly connected to the air jet port;

[0009] Wherein, the two sides of the air inlet pipe are fixedly connected to branch pipes, and the branch pipes are communicated with the two sides of the air cavity;

[0010] The branch pipe is used to balance the pressure inside the nozzle.

[0011] Preferably, the outside of the air inlet pipe is fixedly connected to the outer shell by bolts, and the outer shell is fixedly connected to the gun body by a fixed cover plate.

[0012] Preferably, the moving module includes a strong magnet for adsorbing the inner wall of the reactor and moving on the wall of the expanded section of the reactor to sweep the polyethylene powder;

[0013] The mobile module also includes an electric control box, in which control components such as a control cabinet, a remote controller, and a monitor are installed.

[0014] Preferably, an explosion-proof camera is fixedly connected to the top of the mobile module by bolts for observing the purge path and purge effect.

[0015] Preferably, the top of the movable module is fixedly connected to a safety bar by bolts.

[0016] Preferably, a connecting bracket is fixed on the safety bar for assembling the spray gun;

[0017] There are three spray guns to increase the cleaning area.

[0018] Preferably, brackets are fixedly connected on both sides of the explosion-proof camera, and an anti-fall rope interface is fixedly connected above the bracket for fixed connection with the anti-fall rope to protect the equipment.

[0019] As can be seen from the above, the reactor wall cleaning device provided by this utility model expands the spray coverage of a single spray gun by configuring an arc-shaped nozzle at the front end, thereby significantly improving the efficiency of the cleaning operation. Furthermore, the three spray guns work together to expand the intersection of their spray ranges, allowing dust that is difficult to reach between the spray guns to be more effectively swept away, ensuring a deep and comprehensive cleaning effect, achieving thorough removal of fine powder, and significantly shortening the cleaning cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one or more embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a top view of the spray gun in the utility model;

[0023] Figure 3 It is a left side view of the spray gun in the utility model;

[0024] Figure 4 This is a bottom view of the spray gun in the present utility model;

[0025] Figure 5 This is a front view of the spray gun in the present invention;

[0026] Figure 6 It is a cross-sectional view of the nozzle in the present utility model.

[0027] In the figure: 1. Mobile module; 2. Safety bar; 3. Anti-fall rope interface; 4. Explosion-proof camera; 5. Air pipe interface; 6. Bracket; 7. Spray gun; 71. Gun body; 72. Shell; 73. Nozzle; 74. Fixed cover; 75. Jet port; 81. Inlet pipe; 82. Branch pipe; 83. Air cavity. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] Example 1:

[0031] like Figure 1 、 Figure 2 、 Figure 5 and Figure 6 As shown, a reactor inner wall cleaning device is provided, including a mobile module 1, the mobile module 1 is equipped with a spray gun 7, the spray gun 7 is connected to the gas source through the air pipe interface 5, and the gas source pipe adopts a φ20 rubber gas source pipe of 30m for purging.

[0032] The movable module 1 carries the spray gun 7 and moves on the inner wall of the reactor. The gas sprayed by the spray gun 7 blows off the dust accumulated on the inner wall.

[0033] The spray gun 7 includes a gun body 71, the interior of the gun body 71 is fixedly connected to the air inlet pipe 81, and the front end of the gun body 71 is fixedly connected to the nozzle 73;

[0034] The edge of the nozzle 73 is arc-shaped, which is used to increase the area of ​​the jet airflow and expand the jet range;

[0035] The nozzle 73 has a plurality of air jets 75 evenly arranged in the center of the front arc surface. The direction of the air jets 75 is collinear with the radius of the arc surface, and the air jet width is 500 mm.

[0036] The front end of the air inlet pipe 81 is fixedly connected to the air cavity 83, and the front end of the air cavity 83 is fixedly connected to the air jet 75;

[0037] The two sides of the air inlet pipe 81 are fixedly connected to the branch pipe 82, and the branch pipe 82 communicates with the two sides of the air cavity 83;

[0038] The branch pipe 82 is used to balance the pressure inside the nozzle 73 so that the pressure of the high-pressure gas ejected from each jet port 75 in contact with the inner wall of the reactor remains consistent.

[0039] The outside of the air inlet pipe 81 is fixedly connected to the outer shell 72 via bolts, and the outer shell 72 is fixedly connected to the gun body 71 via a fixed cover plate 74 .

[0040] The safety bar 2 is fixed with a connecting bracket 6 for assembling a spray gun 7;

[0041] There are three spray guns 7 to increase the cleaning area.

[0042] The three spray guns 7 are installed at a certain distance from each other, and there is a gas intersection portion between the nozzles 73, which helps to clean the powder in the gaps between the spray guns 7.

[0043] Example 2:

[0044] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, a reactor inner wall cleaning device is provided, including a mobile module 1, the mobile module 1 is equipped with a spray gun 7, the spray gun 7 is connected to the gas source through the air pipe interface 5, and the gas source pipe adopts a φ20 rubber gas source pipe of 30m for purging.

[0045] The movable module 1 carries the spray gun 7 and moves on the inner wall of the reactor. The gas sprayed by the spray gun 7 blows off the dust accumulated on the inner wall.

[0046] The spray gun 7 includes a gun body 71, the interior of the gun body 71 is fixedly connected to the air inlet pipe 81, and the front end of the gun body 71 is fixedly connected to the nozzle 73;

[0047] The edge of the nozzle 73 is arc-shaped, which is used to increase the area of ​​the jet airflow and expand the jet range;

[0048] The nozzle 73 has a plurality of air jets 75 evenly arranged in the center of the front arc surface. The direction of the air jets 75 is collinear with the radius of the arc surface, and the air jet width is 500 mm.

[0049] The front end of the air inlet pipe 81 is fixedly connected to the air cavity 83, and the front end of the air cavity 83 is fixedly connected to the air jet 75;

[0050] The two sides of the air inlet pipe 81 are fixedly connected to the branch pipe 82, and the branch pipe 82 communicates with the two sides of the air cavity 83;

[0051] The branch pipe 82 is used to balance the pressure inside the nozzle 73 so that the pressure of the high-pressure gas ejected from each jet port 75 in contact with the inner wall of the reactor remains consistent.

[0052] The outside of the air inlet pipe 81 is fixedly connected to the outer shell 72 via bolts, and the outer shell 72 is fixedly connected to the gun body 71 via a fixed cover plate 74 .

[0053] The moving module 1 includes a strong magnet for adsorbing the inner wall of the reactor and moving on the wall of the expanded section of the reactor to sweep the polyethylene powder;

[0054] The mobile module 1 also includes an electrical control box, which contains control components such as a control cabinet, a remote control, and a monitor. The control cabinet converts 220V AC power into 24V DC power to power the robot. The remote control is wirelessly connected to the control board inside the mobile module 1 to enable remote control of the mobile module.

[0055] The mobile module 1 is fixedly connected to an explosion-proof camera 4 by bolts for observing the purge path and purge effect;

[0056] The explosion-proof camera 4 adopts a full-angle self-cleaning explosion-proof camera and is equipped with an explosion-proof lighting lamp inside to observe the purge path and purge effect.

[0057] The safety bar 2 is fixed with a connecting bracket 6 for assembling a spray gun 7;

[0058] There are three spray guns 7 to increase the cleaning area.

[0059] The three spray guns 7 are installed at a certain distance from each other, and there is a gas intersection portion between the nozzles 73, which helps to clean the powder in the gaps between the spray guns 7.

[0060] Example 3:

[0061] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, a reactor inner wall cleaning device is provided, including a mobile module 1, the mobile module 1 is equipped with a spray gun 7, the spray gun 7 is connected to the gas source through the air pipe interface 5, and the gas source pipe adopts a φ20 rubber gas source pipe of 30m for purging.

[0062] The movable module 1 carries the spray gun 7 and moves on the inner wall of the reactor. The gas sprayed by the spray gun 7 blows off the dust accumulated on the inner wall.

[0063] The spray gun 7 includes a gun body 71, the interior of the gun body 71 is fixedly connected to the air inlet pipe 81, and the front end of the gun body 71 is fixedly connected to the nozzle 73;

[0064] The edge of the nozzle 73 is arc-shaped, which is used to increase the area of ​​the jet airflow and expand the jet range;

[0065] The nozzle 73 has a plurality of air jets 75 evenly arranged in the center of the front arc surface. The direction of the air jets 75 is collinear with the radius of the arc surface, and the air jet width is 500 mm.

[0066] The front end of the air inlet pipe 81 is fixedly connected to the air cavity 83, and the front end of the air cavity 83 is fixedly connected to the air jet 75;

[0067] The two sides of the air inlet pipe 81 are fixedly connected to the branch pipe 82, and the branch pipe 82 communicates with the two sides of the air cavity 83;

[0068] The branch pipe 82 is used to balance the pressure inside the nozzle 73 so that the pressure of the high-pressure gas ejected from each jet port 75 in contact with the inner wall of the reactor remains consistent.

[0069] The outside of the air inlet pipe 81 is fixedly connected to the outer shell 72 via bolts, and the outer shell 72 is fixedly connected to the gun body 71 via a fixed cover plate 74 .

[0070] The moving module 1 includes a strong magnet for adsorbing the inner wall of the reactor and moving on the wall of the expanded section of the reactor to sweep the polyethylene powder;

[0071] The mobile module 1 also includes an electrical control box, which contains control components such as a control cabinet, a remote control, and a monitor. The control cabinet converts 220V AC power into 24V DC power to power the robot. The remote control is wirelessly connected to the control board inside the mobile module 1 to enable remote control of the mobile module.

[0072] The mobile module 1 is fixedly connected to an explosion-proof camera 4 by bolts for observing the purge path and purge effect;

[0073] The explosion-proof camera 4 adopts a full-angle self-cleaning explosion-proof camera and is equipped with an explosion-proof lighting lamp inside to observe the purge path and purge effect.

[0074] The top of the mobile module 1 is fixedly connected to the safety bar 2 by bolts.

[0075] The safety bar 2 is fixed with a connecting bracket 6 for assembling a spray gun 7;

[0076] There are three spray guns 7 to increase the cleaning area.

[0077] The three spray guns 7 are installed at a certain distance from each other, and there is a gas intersection portion between the nozzles 73, which helps to clean the powder in the gaps between the spray guns 7.

[0078] The two sides of the explosion-proof camera 4 are fixedly connected to the bracket 6, and the top of the bracket 6 is fixedly connected to the anti-fall rope interface 3 for fixed connection with the anti-fall rope to protect the machine;

[0079] Among them, the anti-fall rope can bear a weight of 300kg. One end is tied to the hanging column outside the reactor, and the other end is connected to the mobile module 1 to prevent the robot from falling during operation and causing damage to the machine and equipment.

[0080] Working principle: The mobile module 1 is adsorbed on the inner wall of the reactor through the strong magnet at the bottom, the anti-fall rope is connected to the anti-fall rope interface 3, and the mobile module 1 is remotely controlled by the remote control. The air pipe interface 5 is connected to the air source, and nitrogen is introduced. The mobile module 1 is equipped with a spray gun 7. After nitrogen is introduced into the air inlet pipe 81 inside the spray gun 7, the gas is ejected from the arc-shaped nozzle 73 to form a spray surface, which moves and blows the polyethylene powder on the wall of the expanded section of the reactor.

[0081] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Within the scope of the present invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0082] The embodiments of the present invention are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reactor inner wall cleaning device, comprising a mobile module (1), wherein the mobile module (1) carries a spray gun (7), and the spray gun (7) is connected to an air source through an air pipe interface (5), characterized in that: The spray gun (7) comprises a gun body (71), the interior of the gun body (71) is fixedly connected to an air inlet pipe (81), and the front end of the gun body (71) is fixedly connected to a nozzle (73); The edge of the nozzle (73) is arc-shaped, which is used to increase the area of ​​the jet airflow and expand the jet range; A plurality of air jets (75) are evenly arranged in the center of the front end arc surface of the nozzle (73), the direction of the air jets (75) is collinear with the radius of the arc surface, and the air jet width is 500 mm; The front end of the air inlet pipe (81) is fixedly connected to the air cavity (83), and the front end of the air cavity (83) is fixedly connected to the air jet port (75); Wherein, the two sides of the air inlet pipe (81) are fixedly connected to branch pipes (82), and the branch pipes (82) are in communication with the two sides of the air cavity (83); The branch pipe (82) is used to balance the pressure inside the nozzle (73).

2. A reactor inner wall cleaning device according to claim 1, characterized in that: The outside of the air inlet pipe (81) is fixedly connected to the outer shell (72) via bolts, and the outer shell (72) is fixedly connected to the gun body (71) via a fixed cover plate (74).

3. A reactor inner wall cleaning device according to claim 1, characterized in that: The moving module (1) includes a strong magnet for adsorbing the inner wall of the reactor and moving on the wall of the expanded section of the reactor to sweep the polyethylene powder; The mobile module (1) further comprises an electric control box, wherein control components such as a control cabinet, a remote controller and a monitor are installed inside the electric control box.

4. A reactor inner wall cleaning device according to claim 3, characterized in that: An explosion-proof camera (4) is fixedly connected to the top of the mobile module (1) via bolts for observing the purge path and purge effect.

5. A reactor inner wall cleaning device according to claim 4, characterized in that: The upper portion of the movable module (1) is fixedly connected to a safety bar (2) via bolts.

6. A reactor inner wall cleaning device according to claim 5, characterized in that: A connecting bracket (6) is fixed on the safety bar (2) for assembling a spray gun (7); There are three spray guns (7) for increasing the cleaning area.

7. A reactor inner wall cleaning device according to claim 5, characterized in that: The explosion-proof camera (4) is fixedly connected to brackets (6) on both sides, and the top of the bracket (6) is fixedly connected to an anti-fall rope interface (3) for fixed connection with the anti-fall rope to protect the equipment.

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